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Commit 32aba3cf authored by Jiri Slaby's avatar Jiri Slaby Committed by Greg Kroah-Hartman
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HID: hidraw: fix window in hidraw_release

commit cb174681

 upstream.

[ Backport to .32.y by Antonio Ospite <ospite@studenti.unina.it> ]

There is a window between hidraw_table check and its dereference.
In that window, the device may be unplugged and removed form the
system and we will then dereference NULL.

Lock that place properly so that either we get NULL and jump out or we
can work with real pointer.

Signed-off-by: default avatarJiri Slaby <jslaby@suse.cz>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
Signed-off-by: default avatarAntonio Ospite <ospite@studenti.unina.it>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent ec955e32
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